NormAPI

by normapi.com · com.normapi/mcp

Validate, generate and read German e-invoices (XRechnung, ZUGFeRD) against the official KoSIT rules.

OnlineRemote + local
Category
Finance and payments
Connection
Remote (HTTP)
Tools
4 reported
Status
Online

Connect it to your AI

Claude Code

claude mcp add --transport http normapi https://normapi.com/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://normapi.com/mcp

This server expects extra headers, usually an API key from its maker.

Or run it locally (npm)

claude mcp add normapi -- npx -y @normapi/mcp@1.2.1

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "normapi": {
      "url": "https://normapi.com/mcp"
    }
  }
}

Tools it offers

4 tools, as the server itself reported during our check on Oct 31, 2026.

  • validate_invoiceCheck an XRechnung (UBL or CII XML) or a ZUGFeRD/Factur-X PDF against the official KoSIT rules. Returns the verdict, the rule set version, and every finding; each business-rule finding comes with a plain-language meaning
  • parse_invoiceRead a received e-invoice — XRechnung or any EN 16931 invoice as UBL or CII XML, or a ZUGFeRD/Factur-X PDF — into structured data. `invoice` is in exactly the shape generate_invoice takes (fields the document lacks are l
  • generate_invoiceProduce an e-invoice as `ubl` or `cii` XML or a ZUGFeRD hybrid PDF (`zugferd`) from invoice data: an XRechnung for a public-sector buyer (profile `xrechnung`, the default), a plain EN 16931 invoice for a business (profil
  • explain_ruleExplain one EN 16931 / XRechnung / Peppol business rule by its code (e.g. BR-DE-15, BR-CO-10, PEPPOL-EN16931-R010): what it requires, why invoices typically break it, and how to fix it, with a link to the full page. Case

Questions

What is the NormAPI MCP server?

Validate, generate and read German e-invoices (XRechnung, ZUGFeRD) against the official KoSIT rules. It is made by normapi.com and listed in the official MCP Registry as com.normapi/mcp. MCP (Model Context Protocol) is the open standard that lets AI apps like Claude, ChatGPT and Cursor use outside tools.

How do I add NormAPI to Claude?

In the Claude app or claude.ai, open Settings, then Connectors, choose "Add custom connector" and paste https://normapi.com/mcp. In Claude Code, run: claude mcp add --transport http normapi https://normapi.com/mcp

How do I add NormAPI to ChatGPT?

ChatGPT can use remote MCP servers as connectors. In ChatGPT settings, under Apps and Connectors, turn on developer mode if asked, create a new connector and paste https://normapi.com/mcp.

How do I add NormAPI to Cursor?

Open Cursor settings, go to MCP, choose "Add new MCP server" (or edit ~/.cursor/mcp.json) and add: { "mcpServers": { "normapi": { "url": "https://normapi.com/mcp" } } }

Does NormAPI work right now?

Yes. It responded when we last checked on 31 Oct 2026. We check remote MCP servers every day.

What can NormAPI do?

It gives your AI 4 tools, including validate_invoice, parse_invoice, generate_invoice, explain_rule. The full list is on this page.

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Markdown (GitHub README)

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HTML (switches to dark mode on its own)

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